The preliminary plat to be provided by the subdivider shall meet and include the following specifications:
(A) Name under which the proposed subdivision is to be recorded;
(B) Small key map showing the relation of the proposed subdivision to section or U.S. survey lines and to platted subdivisions and dedicated streets within 300 feet of the proposed subdivision. The key map shall show the location of any corporate limits of any municipality lying within one and one-half miles or less of the subdivision;
(C) Names and addresses of the owner, subdivider and land planning consultant, and the registered land surveyor who prepared the preliminary plat;
(D) Existing and proposed streets or alleys and rights-of-way on and adjoining the site of the proposed subdivision; showing the names and including street roadway and right-of-way widths, approximate gradients, types and widths of pavement, curbs, sidewalks, crosswalks, planting strips and other pertinent data, including classification of all streets as to function as established herein;
(E) Tract boundary lines, showing their lengths and directions according to available information and references to lines of the public land survey and of other major land divisions;
(F) All lot lines adjacent to and abutting the subdivision, and identification of adjoining lots;
(G) Layout of proposed lots, showing their approximate dimensions, number of lots and their approximate or minimum area, showing an identifying number for each lot;
(H) Parcels of land purposed to be dedicated or reserved for schools, playgrounds or other public, semi-public or community purposes, the use(s) of the area to be subdivided;
(I) Location and size of existing public utilities and drainage ways or facilities within or adjoining the proposed subdivision and the location and size of nearest water trunk mains, interceptor sewer lines and other pertinent utilities;
(J) Location, type and approximate size of utility improvements to be installed;
(K) Easements, existing and proposed, showing locations, widths and purposes;
(L) The gross and net area of the proposed subdivision, the area of street rights-of-way, and the area of any parcels reserved for the common use of the property owners within the subdivision or for public use;
(M) Where the topography has a significant bearing upon the street grades, the plan of public utilities and drainage ways or facilities in the proposed subdivision, contour lines at not greater than five-foot intervals shall be shown. Contour lines shall be shown for all areas with slopes of 5% or greater;
(N) Location of major watercourses, ponding areas, natural drainage ways and flood hazard areas;
(O) The preliminary plat shall be drawn on a scale of 50 feet to one inch, or 100 feet to one inch; provided, however, that if the resulting drawing would be over 36 inches in the shortest dimension, a scale as recommenced by the County Board may be used;
(P) North arrow and date;
(Q) Whenever a large tract is intended to be developed in stages, and only a part of that tract is to be submitted for final plat approval, a preliminary plat for subdivision of the entire tract shall be submitted with notation made of the part to be next submitted for final approval;
(R) A statement to the effect that “this plat is not for record” shall be printed or stamped upon all copies of the preliminary plat;
(S) Location of existing structures and other pertinent features;
(T) Landscaping plan and proposed limits on the location and intensity of signs, advertising and off-street parking shall be included in the case of a proposed subdivision for industrial or commercial use;
(U) Soil information and a soils map, when required;
(V) A comprehensive sewage plan including, but not limited to:
(1) A soil investigation in accordance with the State Private Sewage Disposal Licensing Act and Code, consisting of three test borings per proposed lot;
(2) An interpretation of the soil investigation and recommendations for on-site wastewater disposal based on the soil investigation;
(3) Location of the soil investigation borings marked reserving this area for on-site waste disposal. Any area reserved for on-site waste disposal shall remain undisturbed during development;
(4) All lots served by an on-site waste disposal system shall utilize subsurface waste disposal when possible and practical;
(5) All lots utilizing surface discharging waste disposal systems shall designate the point of discharge on the plat. This point of discharge shall be in accordance with all sections of the State Private Sewage Disposal Licensing Act and Code;
(6) Adequate drainage easements shall be established to accommodate for all effluent discharged from on-site wastewater disposal systems;
(7) When an aerobic treatment unit is utilized for on-site waste disposal it shall be followed by 200 square feet of subsurface absorption field per bedroom when practical in regards to soil characteristics and the water table of the lot;
(8) Any lot discharging effluent to the ground surface from an aerobic treatment unit shall maintain a maintenance contract on said system in accordance with terms equal to the initial service policy stated in the State Private Sewage Disposal Licensing Act and Code;
(9) Surface discharging wastewater treatment systems shall be permitted only on properties deemed unsuitable for a subsurface wastewater treatment system;
(10) Common collector lines for receiving effluent shall not serve more than two houses and shall meet all requirements set forth in the Private Sewage Disposal Licensing Act, 225 ILCS 225/ and Private Sewage Disposal Code, 77 Ill. Admin. Code, Ch. I, Part 905; and
(11) Easements and maintenance agreements shall be established in regards to common collector effluent lines.
(W) The 911 address ranges and street designations.
(Ord. passed 10-14-2003; Ord. passed 11-10-2003; Ord. passed 11-14-2004; Ord. passed 9-11-2007)